这节我们测试下nginx-ingress的4/7层负载，这里的测试环境主要是barematal场景下使用的nodeport方式。首先部署一个ingress，这里使用最新的0.21.0版本：

注意：0.21.0和之前的版本有了变化，default-backend 不在单独一个pod。所以这里部署成功，默认就一个pod。

部署完成之后，访问测试：12345678➜ ~ curl 10.7.12.201:31075404 Not Found404 Not Foundnginx/1.15.6

我们创建两个一个nginx，另一个httpd123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051vi my-nginx.yaml粘贴以下内容：apiVersion: extensions/v1beta1kind: Deploymentmetadata: name: my-nginxspec: replicas: 1 template: metadata: labels: run: my-nginx spec: containers: - name: my-nginx image: nginx ports: - containerPort: 80---apiVersion: v1kind: Servicemetadata: name: my-nginx labels: app: my-nginxspec: ports: - port: 80 protocol: TCP name: http selector: run: my-nginx---apiVersion: extensions/v1beta1kind: Ingressmetadata: name: my-nginx annotations: kubernetes.io/ingress.class: "nginx" # 禁止跳转https nginx.ingress.kubernetes.io/ssl-redirect: "false"spec: rules: - http: paths: - path: / backend: serviceName: my-nginx servicePort: 80

创建：1kubectl apply -f .

查看状态：12345678910111213141516[root@k8s-m1 ingress-nginx]# kubectl get podNAME READY STATUS RESTARTS AGEbusybox 1/1 Running 5 5h1mmy-httpd-6b4494fddc-nztf9 1/1 Running 0 11mmy-nginx-756f645cd7-v5nvg 1/1 Running 0 8m24s[root@k8s-m1 ingress-nginx]# kubectl get svcNAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGEkubernetes ClusterIP 10.96.0.1 443/TCP 21dmy-httpd NodePort 10.105.105.99 80:31300/TCP 11mmy-nginx NodePort 10.100.242.232 80:30750/TCP 8m26s[root@k8s-m1 ingress-nginx]# kubectl get ingNAME HOSTS ADDRESS PORTS AGEmy-httpd * 80 12mmy-nginx * 80 8m30s

这时配置解析，如果没有dns，直接写入hosts：

这时访问：1234curl my-nginx:31075curl my-httpd:31075#curl 10.7.12.201:30175

这时，会出现问题，当curl 10.7.12.201:30175时并不会返回404的页面，而是返回的第一个创建的 ingress 站点内容。

创建资源，这里简单创建一个mysql1234567891011121314151617181920212223242526272829303132apiVersion: v1kind: Podmetadata: name: mysql namespace: default labels: name: mysqlspec: containers: - name: mysql image: docker.io/bitnami/mariadb:10.3.20-debian-9-r19 ports: - containerPort: 3306 protocol: TCP env: - name: MARIADB_ROOT_PASSWORD value: "123456"---apiVersion: v1kind: Servicemetadata: name: svc-mysql namespace: default labels: run: mysqlspec: ports: - port: 3306 targetPort: 3306 protocol: TCP selector: name: mysql

tcp-services-configmap 添加:13306: "default/svc-mysql:3306"

Nginx Ingress Service 添加端口：1234567891011121314151617181920212223242526apiVersion: v1kind: Servicemetadata: name: ingress-nginx namespace: ingress-nginx labels: app.kubernetes.io/name: ingress-nginx app.kubernetes.io/part-of: ingress-nginxspec: type: LoadBalancer ports: - name: http port: 80 targetPort: 80 protocol: TCP - name: https port: 443 targetPort: 443 protocol: TCP - name: proxie-tcp-mysql port: 3306 targetPort: 3306 protocol: TCP selector: app.kubernetes.io/name: ingress-nginx app.kubernetes.io/part-of: ingress-nginx

这里我们就可以通过lb的3306来访问mysql：1root@node1:~/peng/l4# mysql -uroot -p123456 -h10.7.13.202 -P3306